On Thu, Dec 30, 2010 at 07:04:11AM -0600, Larry Evans wrote:
On 12/29/10 22:40, Daryoush Mehrtash wrote:
Why do people put ";" in do {}, or "," in data fields, at the beginning of the line? -- It reflects the parse tree better by putting the combining operators (e.g. ';' and ',') at the left and their operands (or combined subtrees) indented to the right.
I will take this opportunity to mention again a related pet peeve of mine that I originally griped about ages ago: http://www.mail-archive.com/haskell-cafe@haskell.org/msg02231.html Even nowadays, Haddock deliberately generates the following layout for long function types: openTempFile :: FilePath -> String -> IO (FilePath, Handle) The layout draws special attention to the first argument type, whereas the other argument types are indistinguishable from the return type. The following is much clearer: openTempFile :: FilePath -> String -> IO (FilePath, Handle) (Possibly with the arrows aligned.) I can't understand how the "arrows first" convention still lingers so strongly when it is (to me) so obviously wrong and misleading. Please, folks, at least pay a thought to what different indentation and line continuation styles express before adopting one. Lauri